| Autor: |
Hyundong Kim, Sunjae Gwak, Hyeon-Hye Yu, Jinhyeok Ryu, Chil-Min Kim, Chang-Hwan Yi |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Optics Express. 31:12634 |
| ISSN: |
1094-4087 |
| DOI: |
10.1364/oe.484812 |
| Popis: |
We study a systematic formation of continuous exceptional points (EPs) in a fully-asymmetric optical microdisk. A parametric generation of chiral EP modes is investigated by analyzing asymmetricity-dependent coupling elements in an effective Hamiltonian. It is shown that given the external perturbation, the frequency splitting around EPs is scaled by the fundamental “strength” of EPs [J. Wiersig, Phys. Rev. Res. 4, 023121 (2022)10.1103/PhysRevResearch.4.023121] multiplied by the extra responding strength of the newly added perturbation. Our finding demonstrates that the sensitivity of EP-based sensors can be maximized by carefully examining the continuous formation of EPs. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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